said by qlopp:
Maybe I don't know what all is available,
No, you don't. Uverse comes in 2 flavors: "IP-DSLAM" which uses ADSL2+ from the central office, and VDSL from a fiber-to-the-cabinet VRAD (the "neighborhood distribution box").
As for the OP, no, you cannot use your own modem/router. Both flavors of Uverse use 802.1X authentication, and your modem will not have the correct security certificate installed.